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https://github.com/micropython/micropython.git
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00ba6aaae4
For mimxrt, nrf, renesas-ra, rp2 and samd ports, this commit implements similar behaviour to the stm32 port, where USB is only brought up after boot.py completes execution. Currently this doesn't add any useful functionality (and may break workflows that depend on USB-CDC being live in boot.py), however it's a precondition for more usable workflows with USB devices defined in Python (allows setting up USB interfaces in boot.py before the device enumerates for the first time). This work was funded through GitHub Sponsors. Signed-off-by: Angus Gratton <angus@redyak.com.au>
127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/compile.h"
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#include "py/runtime.h"
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#include "py/gc.h"
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#include "py/mperrno.h"
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#include "py/stackctrl.h"
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#include "shared/readline/readline.h"
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#include "shared/runtime/gchelper.h"
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#include "shared/runtime/pyexec.h"
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#include "shared/runtime/softtimer.h"
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#include "shared/tinyusb/mp_usbd.h"
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extern uint8_t _sstack, _estack, _sheap, _eheap;
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extern void adc_deinit_all(void);
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extern void pin_irq_deinit_all(void);
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extern void pwm_deinit_all(void);
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extern void sercom_deinit_all(void);
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void samd_main(void) {
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mp_stack_set_top(&_estack);
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mp_stack_set_limit(&_estack - &_sstack - 1024);
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for (;;) {
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gc_init(&_sheap, &_eheap);
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mp_init();
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// Initialise sub-systems.
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readline_init0();
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// Execute _boot.py to set up the filesystem.
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pyexec_frozen_module("_boot.py", false);
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// Execute user scripts.
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int ret = pyexec_file_if_exists("boot.py");
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mp_usbd_init();
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if (ret & PYEXEC_FORCED_EXIT) {
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goto soft_reset_exit;
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}
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// Do not execute main.py if boot.py failed
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if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL && ret != 0) {
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ret = pyexec_file_if_exists("main.py");
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if (ret & PYEXEC_FORCED_EXIT) {
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goto soft_reset_exit;
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}
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}
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for (;;) {
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if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
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if (pyexec_raw_repl() != 0) {
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break;
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}
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} else {
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if (pyexec_friendly_repl() != 0) {
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break;
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}
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}
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}
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soft_reset_exit:
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mp_printf(MP_PYTHON_PRINTER, "MPY: soft reboot\n");
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#if MICROPY_PY_MACHINE_ADC
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adc_deinit_all();
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#endif
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pin_irq_deinit_all();
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#if MICROPY_PY_MACHINE_PWM
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pwm_deinit_all();
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#endif
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soft_timer_deinit();
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gc_sweep_all();
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#if MICROPY_PY_MACHINE_I2C || MICROPY_PY_MACHINE_SPI || MICROPY_PY_MACHINE_UART
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sercom_deinit_all();
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#endif
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mp_deinit();
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}
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}
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void gc_collect(void) {
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gc_collect_start();
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gc_helper_collect_regs_and_stack();
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gc_collect_end();
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}
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void nlr_jump_fail(void *val) {
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for (;;) {
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}
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}
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void abort(void) {
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for (;;) {
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}
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}
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#ifndef NDEBUG
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void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
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mp_printf(MP_PYTHON_PRINTER, "Assertion '%s' failed, at file %s:%d\n", expr, file, line);
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for (;;) {
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}
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}
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#endif
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